DM

David P. Morstad

📍 Minot, ND: #13 of 68 inventorsTop 20%
🗺 North Dakota: #797 of 2,395 inventorsTop 35%
Overall (All Time): #2,311,325 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5141301 Soft bifocal contact lens — 1992-08-25
4702573 Variable powered contact lens — 1987-10-27